Portion of an article for fastening socks



FIG. 1 is a front perspective view of a portion of an article for fastening socks, showing our new design;

FIG. 2 is a front view thereof, the back view being identical thereto;

FIG. 3 is a side view thereof, the opposite side view being identical thereto;

FIG. 4 is a top side view thereof; and,

FIG. 5 is a bottom side view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of an article for fastening socks, as shown and described. 